Level shifter shield
About the Level shifter shield
Level shifter shield is an open source PCB design by ajokela, published on GitHub. It is a board, with 1 components from 1 distinct parts.
Other key parts include the TXB0108PWR.
It belongs with the retro computing and dev boards & breakouts designs in this gallery.
From the project
Level shifter shield for interfacing 3.3V Arduino boards (Due, Giga R1) with 5V RetroShield Z80 using TXB0108 ICs
A level shifter shield for interfacing the 8bitforce RetroShield Z80 with 3.3V Arduino boards (Due, Giga R1 WiFi).
The RetroShield Z80 operates at 5V logic levels, but the Arduino Due and Giga R1 use 3.3V logic. This shield provides bidirectional level shifting for all 32 signals between the boards.
Primary Choice: TXB0108 (8-channel bidirectional)
The TXB0108 is ideal because: - Automatic direction sensing (no control signals needed) - 8 channels per chip (only 4 ICs for 32 signals) - Works with push-pull outputs - Fast enough for Z80 speeds (4+ MHz)
Main components on the Level shifter shield
Level shifter shield bill of materials (BOM)
1 components, 1 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TXB0108PWR Texas Instruments | U1 |
Level shifter shield design files
The KiCad project lives in the ajokela/level-shifter-shield repository on GitHub; these links point at the commit this page was built from.
- Schematickicad/LevelShifterShield.kicad_sch
- BOMBOM.csv
Level shifter shield: common questions
How many components are on the Level shifter shield?
1 components, from 1 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Level shifter shield design files?
From the ajokela/level-shifter-shield repository on GitHub, which has the schematic and the BOM; the links under Design files point to each one.
Can I use the Level shifter shield design in my own project?
The repository has no license, so all rights stay with ajokela. Use it as a reference, and ask the author before reusing the design.
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